Programming Technology of IP Multicast and Broadcast Based on Socket

摘要

Beginning with the simple introduction of socket which is the most commonly used application program interfaces in UNIX/LINUX communication domain, the concrete program- ming procedures to realize multicast and broadcast based on socket is provided, according to TCP/IP protocol in LINUX system. The acquiring and converting of broadcast destination ad- Dress and multicast address, the setting of multicast options, the joining in and withdrawing From the multicast group, and the receiving and sending of datagram are all demonstrated in it, The related system calls and simple explication of C programming are also included.